Interesting question. But keep in mind they are government which means they have access to almost everything, even great people, hackers, it, computer geniuses etc. That is why I believe they could hire very smart people to help them regulate cryptos, or maybe they are already doing it, they are only waiting to apply it officially, who knows? Never underestimate the government.
You are very right, the government can easily do everything about crypto currencies in the country if the government forbids me to think that no one can do anything to free the ban if the government cooperates, maybe it will get better results.